Originally Posted By: HWEaton
Originally Posted By: MrCritical
The last thing I ever do will be take up for a quick lube.
However, on that year model Tahoe, I believe if you can touch the rear diff lube, it is overfull.
If I recall, it should be 5 to 14mm below the fill hole.
Does anyone know why some makers are designing fill plugs like this? Is there a good reason to abandon the old "fill to the hole"? That made it almost impossible to overfill.